[LLVMdev] nsw/nuw for trunc

[james woodyatt]

On Aug 11, 2011, at 12:47 , Chris Lattner wrote:
> 
> For clarity, I'm saying that it would make sense for LLVM IR to support this concept (instcombine could infer it for example), but I don't think it makes sense for clang to generate it.

I can think of a use for it in my project if it were in the LLVM IR.  It would be nice if LLVM optimizers could understand this feature.  I would encourage you to consider accepting patches that implemented this improvement.


—
j h woodyatt <jhw at conjury.org>
http://jhw.dreamwidth.org/